[build] add flag to enable dynamic logging level (#4335)

Android.mk

@@ -32,6 +32,8 @@ OPENTHREAD_DEFAULT_VERSION := $(shell cat $(LOCAL_PATH)/.default-version)
 OPENTHREAD_SOURCE_VERSION := $(shell git -C $(LOCAL_PATH) describe --always --match "[0-9].*" 2> /dev/null)
 
 OPENTHREAD_COMMON_FLAGS                                          := \
+    -DOPENTHREAD_CONFIG_ENABLE_DYNAMIC_LOG_LEVEL=1                  \
+    -DOPENTHREAD_CONFIG_MAC_FILTER_ENABLE=1                         \
     -DPACKAGE=\"openthread\"                                        \
     -DPACKAGE_BUGREPORT=\"[email protected]\"       \
     -DPACKAGE_NAME=\"OPENTHREAD\"                                   \

examples/common-switches.mk

@@ -44,6 +44,7 @@ DHCP6_SERVER        ?= 0
 DIAGNOSTIC          ?= 0
 DISABLE_DOC         ?= 0
 DNS_CLIENT          ?= 0
+DYNAMIC_LOG_LEVEL   ?= 0
 ECDSA               ?= 0
 EXTERNAL_HEAP       ?= 0
 IP6_FRAGM           ?= 0
@@ -131,6 +132,10 @@ ifeq ($(DNS_CLIENT),1)
 COMMONCFLAGS                   += -DOPENTHREAD_CONFIG_DNS_CLIENT_ENABLE=1
 endif
 
+ifeq ($(DYNAMIC_LOG_LEVEL),1)
+COMMONCFLAGS                   += -DOPENTHREAD_CONFIG_ENABLE_DYNAMIC_LOG_LEVEL=1
+endif
+
 ifeq ($(ECDSA),1)
 COMMONCFLAGS                   += -DOPENTHREAD_CONFIG_ECDSA_ENABLE=1
 endif